Boring-machine.



PATENTED MAR. 12, 1907.

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G. SOMERS. BORING MACHINE. APPLICATION IILED MAR. 22, 1906. 4

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APPLICATION FILED MAR. 22, 1906.

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T FFIC CARL SOMERS, OF FAIRMONT, WEST VIRGINIA.

BORING-MACHINE.

Specification of Letters Patent.

Patented March 12, 1907.

Application filed March 22, 1906. Serial No. 307,496.

To all whom it may concern:

Be it known that I, CARL SOMERS, a citizen of the United States ofAmerica, residing at Fairmont, in the county of Marion and State of WestVirginia, have invented certain new and useful Improvements inBoring-Machines, of which the following is a specification.

This invention relates to metal-working tools, and more particularly toan equipment designed for the purpose of relining and reshapingarmature-shaft, main-shaft, or other bearings for the performance oflike functions.

It is an object of this invention to provide a device of this characterwhich will prove simple in construction, efiicient in practice, andcomparatively inexpensive to manufacture.

With the foregoing and other objects in view the invention consists inthe details of construction and in the arrangement and combination ofparts to be hereinafter more fully set forth and claimed.

Figure 1 is a side view in elevation of the device assembled foroperation in boring the lining of a journal-box. Fig. 2 is a similarview taken at right angles to that of Fig. 1. Fig. 3 is a sectional viewshowing portions of the journal-boxes to be bored. Fig. 4 is a sectionalview taken on the line 4 4 of Fig. 1.

In the drawings, denotes a suitable platform comprising beams suitablyseparated to form a space of such width as to receive the dependingportion of the cutting-stem, (to be hereinafter described,) saidplatform having two upwardly-extending anchoring-bolts B, which engagelugs b on the head C of the boring apparatus, the said head having ayoke D, which is threaded to receive the feedscrew E of the boring aparatus.

A base F is statione on the platform and is rovided withupwardly-extending arms which engage a wing F. This wing has a bore ofsuch diameter as to receive j ournalboxes, and said ring is providedwith transverse clamping-screws f, threaded through the wall thereof anddesigned to clamp the two sections of the journal-box in position withinthe ring. It is to be observed that the base F, the upright arms, andthe ring F are formed integral. This ring, together with theclamping-screws, is utilized for the purpose of holding thejournal-boxes to be bored.

When the journal-box H or the lining thereof is to be bored, the head 0is applied to the ring with the bolts B engaging the lugs b. The nuts 6are then run on the threaded nuts of the bolts B, and the head is thusclamped in place. The yoke portion of the head is threaded, as stated,to receive the feed-screw E, said feed-screw E terminating in a stem e,which carries one or more cutters e. The stem, as stated, is of suchsize as to feed within the opening f 2 in the bottom of the ring and isguided thereby, thus insuring a uniform action of the cutters on thelining. The cutters are preferably adjustable transversely of the stem,and, if desired, a great number of such cutters may be utilized.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

In a metal-working apparatus, a base having an apertured bottom,upwardly-extending arms on the base, a ring carried by the arms, aplatform in which the base is supported, means for clamping an object inthe ring, a head engaging the ring, means engaging the platform and headfor holding the head to the ring and for holding the ring and base tothe platform, a threaded yoke car-' ried by the head, a feed-screwthreaded in the yoke, a stem on the feed-screw and cutter-blades carriedby the stem.

In testimony whereof I aflix my signature,

in the presence of two witnesses, this 10th day of November, 1905.

CARL SOMERS. Witnesses:

H. H. STAecERs, SAML H. BUTCHER.

